rs58605568

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_033059.4(KRTAP4-11):​c.215C>T​(p.Ser72Phe) variant causes a missense change. The variant allele was found at a frequency of 0.0000082 in 1,584,872 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S72Y) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., cov: 35)
Exomes 𝑓: 0.0000063 ( 0 hom. )

Consequence

KRTAP4-11
NM_033059.4 missense

Scores

3
5
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.62

Publications

1 publications found
Variant links:
Genes affected
KRTAP4-11 (HGNC:18911): (keratin associated protein 4-11) This protein is a member of the keratin-associated protein (KAP) family. The KAP proteins form a matrix of keratin intermediate filaments which contribute to the structure of hair fibers. KAP family members appear to have unique, family-specific amino- and carboxyl-terminal regions and are subdivided into three multi-gene families according to amino acid composition: the high sulfur, the ultrahigh sulfur, and the high tyrosine/glycine KAPs. This protein is a member of the ultrahigh sulfur KAP family and the gene is localized to a cluster of KAPs at 17q12-q21. [provided by RefSeq, Mar 2009]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.40224206).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KRTAP4-11NM_033059.4 linkc.215C>T p.Ser72Phe missense_variant Exon 1 of 1 ENST00000391413.4 NP_149048.2 Q9BYQ6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KRTAP4-11ENST00000391413.4 linkc.215C>T p.Ser72Phe missense_variant Exon 1 of 1 6 NM_033059.4 ENSP00000375232.2 Q9BYQ6

Frequencies

GnomAD3 genomes
AF:
0.0000267
AC:
4
AN:
150010
Hom.:
0
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.0000254
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000627
AC:
9
AN:
1434862
Hom.:
0
Cov.:
226
AF XY:
0.00000982
AC XY:
7
AN XY:
712870
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
28270
American (AMR)
AF:
0.00
AC:
0
AN:
42836
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25562
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39116
South Asian (SAS)
AF:
0.00
AC:
0
AN:
82044
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52976
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5642
European-Non Finnish (NFE)
AF:
0.00000818
AC:
9
AN:
1099606
Other (OTH)
AF:
0.00
AC:
0
AN:
58810
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.319
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000267
AC:
4
AN:
150010
Hom.:
0
Cov.:
35
AF XY:
0.0000136
AC XY:
1
AN XY:
73306
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000254
AC:
1
AN:
39422
American (AMR)
AF:
0.00
AC:
0
AN:
15224
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5162
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
67994
Other (OTH)
AF:
0.00
AC:
0
AN:
2070
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.0000000401256), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.350
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Aug 05, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.215C>T (p.S72F) alteration is located in exon 1 (coding exon 1) of the KRTAP4-11 gene. This alteration results from a C to T substitution at nucleotide position 215, causing the serine (S) at amino acid position 72 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.38
BayesDel_addAF
Benign
-0.092
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.21
T
Eigen
Uncertain
0.39
Eigen_PC
Benign
0.19
FATHMM_MKL
Benign
0.50
D
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.40
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Pathogenic
4.1
H
PhyloP100
3.6
PrimateAI
Benign
0.25
T
PROVEAN
Pathogenic
-4.5
D
REVEL
Benign
0.14
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0010
D
Polyphen
0.99
D
Vest4
0.14
MutPred
0.54
Gain of sheet (P = 0.0149);
MVP
0.46
MPC
0.0086
ClinPred
0.95
D
GERP RS
4.2
PromoterAI
-0.0010
Neutral
Varity_R
0.23
gMVP
0.047
Mutation Taster
=96/4
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs58605568; hg19: chr17-39274353; COSMIC: COSV105330698; COSMIC: COSV105330698; API